package com.tanhua.server.service;

import com.alibaba.dubbo.common.utils.CollectionUtils;
import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.tanhua.common.pojo.User;
import com.tanhua.common.pojo.UserInfo;
import com.tanhua.dubbo.server.pojo.RecommendUser;
import com.tanhua.dubbo.server.vo.PageInfo;
import com.tanhua.server.vo.PageResult;
import com.tanhua.server.vo.RecommendUserQueryParam;
import com.tanhua.server.vo.TodayBest;
import org.apache.commons.lang3.StringUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.stereotype.Service;

import java.util.*;

@Service
public class TodayBestService {
    @Autowired
    private UserService userService;
    @Autowired
    private RecommendUserService recommendUserService;
    @Value("${tanhua.sso.default.user}")
    private Long defaultUser;
    @Autowired
    private UserInfoService userInfoService;

    public TodayBest queryTodayBest(String token) {
        User user = userService.queryUserByToken(token);
        if (user == null) {
            return null;
        }
        TodayBest todayBest = recommendUserService.queryWithMaxScore(user.getId());
        if (todayBest == null) {
            todayBest = new TodayBest();
            todayBest.setId(defaultUser);
            todayBest.setFateValue(80L);
        }
        UserInfo userInfo = userInfoService.queryUserInfoById(todayBest.getId());
        if (userInfo == null) {
            return null;
        }
        todayBest.setAvatar(userInfo.getLogo());
        todayBest.setNickname(userInfo.getNickName());
        todayBest.setTags(StringUtils.split(userInfo.getTags(), ','));
        todayBest.setGender(userInfo.getSex().getValue() == 1 ? "man" : "woman");
        todayBest.setAge(userInfo.getAge());
        return todayBest;
    }

    public PageResult queryRecommendation(String token, RecommendUserQueryParam queryParam) {
        //校验token是否有效，通过SSO的接口进行校验
        User user = this.userService.queryUserByToken(token);
        if (null == user) {
            //token非法或已经过期
            return null;
        }

        PageResult pageResult = new PageResult();
        pageResult.setPage(queryParam.getPage());
        pageResult.setPagesize(queryParam.getPagesize());

        PageInfo<RecommendUser> pageInfo = this.recommendUserService.queryRecommendUserList(user.getId(), queryParam.getPage(), queryParam.getPagesize());
        List<RecommendUser> records = pageInfo.getRecords();
        if (CollectionUtils.isEmpty(records)) {
            //没有查询到推荐的用户列表
            return pageResult;
        }

        //填充个人信息

        //收集推荐用户的id
        Set<Long> userIds = new HashSet<>();
        for (RecommendUser record : records) {
            userIds.add(record.getUserId());
        }

        QueryWrapper<UserInfo> queryWrapper = new QueryWrapper<>();

        //用户id参数
        queryWrapper.in("user_id", userIds);

//        if (StringUtils.isNotEmpty(queryParam.getGender())) {
//            //需要性别参数查询
//            queryWrapper.eq("sex", StringUtils.equals(queryParam.getGender(), "man") ? 1 : 2);
//        }
//
//        if (StringUtils.isNotEmpty(queryParam.getCity())) {
//            //需要城市参数查询
//            queryWrapper.like("city", queryParam.getCity());
//        }
//
//        if (queryParam.getAge() != null) {
//            //设置年龄参数，条件：小于等于
//            queryWrapper.le("age", queryParam.getAge());
//        }

        List<UserInfo> userInfoList = this.userInfoService.queryUserInfoList(queryWrapper);
        if(CollectionUtils.isEmpty(userInfoList)){
            //没有查询到用户的基本信息
            return pageResult;
        }

        List<TodayBest> todayBests = new ArrayList<>();
        for (UserInfo userInfo : userInfoList) {
            TodayBest todayBest = new TodayBest();

            todayBest.setId(userInfo.getUserId());
            todayBest.setAvatar(userInfo.getLogo());
            todayBest.setNickname(userInfo.getNickName());
            todayBest.setTags(StringUtils.split(userInfo.getTags(), ','));
            todayBest.setGender(userInfo.getSex().getValue() == 1 ? "man" : "woman");
            todayBest.setAge(userInfo.getAge());

            //缘分值
            for (RecommendUser record : records) {
                if(record.getUserId().longValue() == userInfo.getUserId().longValue()){
                    double score = Math.floor(record.getScore());//取整,98.2 -> 98
                    todayBest.setFateValue(Double.valueOf(score).longValue());
                    break;
                }
            }

            todayBests.add(todayBest);
        }

        //按照缘分值进行倒序排序
        Collections.sort(todayBests, (o1, o2) -> new Long(o2.getFateValue() - o1.getFateValue()).intValue());

        pageResult.setItems(todayBests);

        return pageResult;
    }
}
